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CLI-based Configuration Guide - Network Management and Monitoring

AR100, AR120, AR150, AR160, AR200, AR1200, AR2200, AR3200, and AR3600 V200R009

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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Overview of Mirroring

Overview of Mirroring

Definition

The mirroring function copies packets on a specified port (source port or mirrored port) to another specified port (destination port or observing port).

Purpose

During network operation and maintenance, network administrators often need to obtain and analyze packets sent to or from devices for service monitoring and fault location purposes.

The mirroring function copies packets on a mirrored port to an observing port without affecting the packet processing capability of the devices. Network administrators can analyze the copy of packets sent from an observing port to a monitoring device to determine whether services running on a network are normal.

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Updated: 2019-05-17

Document ID: EDOC1000174072

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